What is CVE-2023-20528?

CVE-2023-20528 is a low-severity vulnerability in Amd 2nd Gen Epyc, classified under Improper Input Validation. CVSS score: 2.4/10. Published 2023-01-11.

How severe is CVE-2023-20528?

Low severity. CVSS v3 base score is 2.4 out of 10.

Improper input validation in Amd 2nd Gen Epyc

CVE-2023-20528

Insufficient input validation in the SMU may allow a physical attacker to exfiltrate SMU memory contents over the I2C bus potentially leading to a loss of confidentiality.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.002 (15.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Amd 2nd Gen Epyc — versions various
Amd 3rd Gen Epyc — versions various
Amd Epyc_7002
Amd Epyc_7002_firmware
Amd Epyc_7003
Amd Epyc_7003_firmware
Amd Epyc_7232p
Amd Epyc_7232p_firmware
Amd Epyc_7252
Amd Epyc_7252_firmware

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

psirt@amd.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2023-20528?: CVE-2023-20528 is a low-severity vulnerability in Amd 2nd Gen Epyc, classified under Improper Input Validation. CVSS score: 2.4/10. Published 2023-01-11.
How severe is CVE-2023-20528?: Low severity. CVSS v3 base score is 2.4 out of 10.